SE2550BL Datasheet, PDF (1/2 Pages) SiGe Semiconductor, Inc. – 2.4 GHz Low Power Front End Module Preliminary

SE2550BL
2.4 GHz Low Power Front End Module
Preliminary
Applications
ƒ Portable WLAN – Cell phones, PDA’s
ƒ DSSS 2.4 GHz WLAN (IEEE802.11b)
ƒ OFDM 2.4 GHz WLAN (IEEE802.11g)
Features
ƒ Includes: PA, 50 ohm matching, Power detector,
harmonic filter and SPDT Switch.
ƒ 802.11g Output Power
ƒ
+ 17 dBm, EVM = 3.0 %, ICC = 125 mA
ƒ 802.11b Output Power
ƒ
+ 19 dBm, ACPR = -40 dBr, ICC = 150 mA
ƒ 28 dB Gain
ƒ Robust, selectable slope, power detector with
~1.5 dB variation over 2:1 mismatch
ƒ Integrated power amplifier enable pin (VEN)
ƒ Single supply voltage: 2.7 V to 3.6 V
ƒ Lead free and RoHs compliant
ƒ Small, lead free package, 18 pin 4 mm x 4.5 mm
x 0.6 mm QFN, MSL3
Ordering Information
Type
SE2550BL
SE2550BL-R
SE2550BL-EK1
Package
18-QFN
18-QFN
Evaluation Kit
Functional Block Diagram
Remark
Samples
Tape and Reel
Standard
Product Description
The SE2550BL is a 2.4 GHz front end module
designed for use in the 2.4 GHz ISM band for portable
wireless LAN applications. The device offers high
efficiency at the required output powers to ensure
longer battery life for cellphone, PDA and other
portable applications.
The SE2550BL is highly integrated, allowing for a
smaller footprint and simple design. The device
includes a power amplifier, digital enable control for
device on/off control, T/R Switch, harmonic filter and
50 ohm matching on all I/O. With the digital enable
control, the device can be directly connected to a
CMOS baseband or transceiver.
The SE2550BL temperature compensated power
detector has two selectable power detectors slopes,
positive and negative. This allows easy use with
multiple chipsets. The detector is also highly immune
to mismatch at its output with less than 1.5 dB of
variation with a 2:1 mismatch.
V CC0 V EN
Bias Generator
V CC3
C1
C2
RF I N
50 Ohm
Match
Stage 1
Stage 2
Stage 3
Filtering
SPDT
ANT
V CC1
Detector
(with Switch)
V CC2
Slope SEL
V D E T OUT
RX OUT
Figure 1: SE2550BL Functional Block Diagram
65-DST-01 ƒ Rev 1.3 ƒ May-26-2009
QA040506
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